The venue is on an island, so the best way to get there is by ferry. You can bring your car on the ferry, or walk on. You can also get there without getting on the ferry, but it is an extra hour or so of driving.
SeaTac is the big airport in the Seattle area which is most easily accessible, but it is around 1.5 -2 hours away from the venue. There is an airport called Paine Field that is about an hour from the venue, but does not have as many flights available.
There are a limited number of hotels available on the island, but there are a lot of Airbnbs and VRBOs available on the island. There are also hotel options on the Seattle side of the ferry.
In the summer the ferry runs from 5:30 AM to 12:30 AM leaving from Clinton. The ferry runs every half hour during the day, and every hour starting at 11:30 PM. If you plan poorly (or have too much to drink) the longest you'll be stuck on the island is 5 hours before the ferry starts running again.
As we get closer to the date and gather more details we will add more information. Stay tuned!